[Chromium] Unreviewed gardening.

New results for effect-reference-hw, due to slight pixel differences from http://src.chromium.org/viewvc/chrome?view=rev&revision=191067

* platform/chromium-mac/css3/filters/effect-reference-hw-expected.png:
* platform/chromium-win/css3/filters/effect-reference-hw-expected.png:
* platform/chromium/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147435 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed, rolling out r147389.
http://trac.webkit.org/changeset/147389
https://bugs.webkit.org/show_bug.cgi?id=113738

r147389 was temporary patch for Chromium branch management, needs
revert.

* platform/ScrollView.cpp:
(WebCore::positionScrollbarLayer):
* rendering/RenderLayerBacking.cpp:
(WebCore::RenderLayerBacking::positionOverflowControlsLayers):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147436 268f45cc-cd09-0410-ab3c-d52691b4dbfc